Improvement in car-couplings



D. W. SHOGKLET, Oar-Coupling.

No. 198,695. Patented Dec. 25, 18 77.

Winesses:

NJETERS, Puoro-uTuocaAEnER, W D

UNITED STATES PATENT QFFICE.

DAVID W. SHOGKLEY, WILMINGTON, DELAWARE;

IMPROVEMENT IN CAR-COUPLINGS.

Specification forming part of Letters Patent No. 198,695, dated December25, 1877 application filed November 25, 1876. i

The object of my invention is to hold the link in a self coupler, so asto couple the cars with a straight link when there is not more than adifference of eight inches in the height of cars.

The invention consists in the construction and arrangement of acar-coupler, as will be hereinafter more fully-set forth.

In the accompanying drawing,in which similar letters of referenceindicate like parts,

Figure 1 is a longitudinal sectional view of my invention. Fig. 2 is alongitudinal plan view of the same.

A represents a bolt, which I call an adjuster, made with a T-shapedhead, which permits it to be passed through a slot in a draw-head, andwhen turned in the slot prevents it from being withdrawn. On the otherend is placed a nut, H, which, when screwed down, holds the adjusterfirmly in position. This adjuster works in a slot, B, cut through adraw-head, as shown in Fig. 1, the object of which is to regulate thetension of the spring 0, so as to give any desired pressure upon theblock D, which holds the coupling-pin E and link F in position.

As the adjuster is moved forward it increases the tension of the spring0, and has a tendency to throw the block D out of position. This resultis prevented by the dead-stop G G, which is formed by making a squareshoulder on the upper and lower parts of a flaringmouthed draw-head.

It will readily be seen that when the pin E is raised so that the blockD is moved forward and the pin rests thereon, the coupling-link, bymotion of the cars, forces back the block D, so that it is brought on aline with the bottom pin-hole, when the pin E will drop into the same.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a car-coupler, an adjuster moving in a slot, substantially asdescribed.

2. In a car-coupler, the slotted draw-bar, in combination with the boltor adjuster A, provided on one end with a T-shaped head, and on theother end with a-nut, H, and adapted to regulate the tension of thespring, substantially as specified.

- DAVID W. SH'OOKLEY.

Witnesses:

J NO. H. PUHL, EDMUND RIcE.

